Feedback form
Hi! What do you think?

Drag it here or paste with Ctrl+V

    You can also email us on infocalculat.io

    Factors of a Number

    List all Factors and Factor Pairs of a Number

    "Factors of a Number" Calculator

    Factors of

    How to Find All Factors of a Number

    How to find all factors of 24

    √24 ≈ 4.901234681224

    4 pairs: 1 × 24 · 2 × 12 · 3 × 8 · 4 × 6

    Past √24 ≈ 4.90 every pair would repeat one already found — so checking stops at 4.

    Rule: divide by 1, 2, 3, … up to √N. Every exact division gives a pair d and N/d; if they are the same (a perfect square), the factor is written once.
    Most asked
    NumberFactors
    361, 2, 3, 4, 6, 9, 12, 18, 36
    481, 2, 3, 4, 6, 8, 12, 16, 24, 48
    631, 3, 7, 9, 21, 63
    321, 2, 4, 8, 16, 32
    1001, 2, 4, 5, 10, 20, 25, 50, 100

    See Also

    Last Results

    Factors of 21
    Factors of 150
    Factors of 3
    Factors of 225
    Factors of 5
    Factors of 90
    Factors of 45
    Factors of 1000
    Factors of 8
    Factors of 169
    Factors of 960
    Factors of 702366
    Factors of 25
    Factors of 67
    Factors of 147
    Factors of 69
    Factors of 38
    Factors of 58
    Factors of 50
    Factors of 63
    Factors of 73
    Factors of 80
    Factors of 36
    Factors of 140
    Factors of 112
    Factors of 104
    Factors of 210
    Factors of 4
    Factors of 189
    Factors of 175
    Factors of 109
    Factors of 52
    Factors of 252
    Factors of 117
    Factors of 55
    Factors of 116
    Factors of 44
    Factors of 76
    Factors of 240
    Factors of 96
    Factors of 93
    Factors of 132
    Factors of 102
    Factors of 306
    Factors of 500
    Factors of 78
    Factors of 400
    Factors of 200
    Factors of 13
    Factors of 350
    Factors of 135
    Factors of 2026
    Factors of 281
    Factors of 50000
    Factors of 43
    Factors of 250

    FAQ

    What is a factor of a number?

    A factor of a number is a positive integer that divides it exactly, with no remainder. For example, the factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24.

    What is a factor pair?

    A factor pair is two factors that multiply together to give the original number. For 24, the factor pairs are (1, 24), (2, 12), (3, 8) and (4, 6).

    How do you find all factors of a number?

    Check every whole number from 1 up to the square root of the number. Each time one divides evenly, both it and the paired quotient are factors — this trial-division method finds the complete list without testing every number up to n.