Q: What are the prime factors of the number 40,615,104?

 A: 2, 3, 199, 1063

Why are those the prime factors of the number 40,615,104?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 40,615,104

40,615,104
Factor Arrows
220,307,552
Factor Arrows
210,153,776
Factor Arrows
25,076,888
Factor Arrows
22,538,444
Factor Arrows
21,269,222
Factor Arrows
2634,611
Factor Arrows
3211,537
Factor Arrows
1991,063

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 199, 1063

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 199 x 1,063 = 40,615,104

This can also be written as 26 x 31 x 1991 x 1,0631 = 40,615,104

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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