# Deficient numbers generator

## World's simplest math tool

Free online deficient numbers sequence generator. Just specify how many deficient numbers you need and you'll automatically get that many values. There are no ads, popups or nonsense, just an awesome deficient numbers sequence calculator. Press button – get deficient numbers. Created by math nerds from team Browserling.

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Deficient numbers generator tool
What is a deficient numbers generator?

This tool calculates deficient numbers. A number is called deficient if the sum of its divisors is less than the number itself. For example, if we find and add all the divisors of the number 10 we get 1 + 2 + 5 = 8. Comparing them, we see that 8 is less than 10, therefore 10 is a deficient number. In this tool, you can generate a sequence of as many excessive values as you need. You can specify the minimum deficient value and also adjust the output sequence's number delimiter. Mathabulous!

Deficient numbers generator examples
Click to use

First 100 Deficient Numbers

In this example we generate the first 100 values of the deficient number sequence and separate them with space.

1 2 3 4 5 7 8 9 10 11 13 14 15 16 17 19 21 22 23 25 26 27 29 31 32 33 34 35 37 38 39 41 43 44 45 46 47 49 50 51 52 53 55 57 58 59 61 62 63 64 65 67 68 69 71 73 74 75 76 77 79 81 82 83 85 86 87 89 91 92 93 94 95 97 98 99 101 103 105 106 107 109 110 111 113 115 116 117 118 119 121 122 123 124 125 127 128 129 130 131

**Required options**

Set the minimum value of the
deficient numbers sequence.

How many deficient numbers
to generate?

Set the delimiter that will be
inserted between deficient
numbers in the output
sequence. (Newline by default.)

Large Starting Value

In this example we set the minimum excessive number we're interested to 200000000, generate 20 sequence values and separate them with a semicolon.

200000001; 200000002; 200000003; 200000005; 200000006; 200000007; 200000009; 200000011; 200000012; 200000013; 200000014; 200000015; 200000017; 200000018; 200000019; 200000021; 200000023; 200000025; 200000026; 200000027

**Required options**

Set the minimum value of the
deficient numbers sequence.

How many deficient numbers
to generate?

Set the delimiter that will be
inserted between deficient
numbers in the output
sequence. (Newline by default.)

Pro tips
Master online math tools

You can pass options to this tool using their codes as query arguments and it will automatically compute output. To get the code of an option, just hover over its icon. Here's how to type it in your browser's address bar. Click to try!

https://onlinemathtools.com/generate-deficient-numbers?&start=0&count=100&separator=%20

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