Q: What are the prime factors of the number 144,344,772?

 A: 2, 3, 11, 13, 2549

Why are those the prime factors of the number 144,344,772?

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 144,344,772

144,344,772
Factor Arrows
272,172,386
Factor Arrows
236,086,193
Factor Arrows
312,028,731
Factor Arrows
34,009,577
Factor Arrows
11364,507
Factor Arrows
1133,137
Factor Arrows
132,549

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, 11, 13, 2549

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 11 x 13 x 2,549 = 144,344,772

This can also be written as 22 x 32 x 112 x 131 x 2,5491 = 144,344,772

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


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