Q: What are the prime factors of the number 125,261,154?

 A: 2, 3, 53, 1621

Why are those the prime factors of the number 125,261,154?

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 125,261,154

125,261,154
Factor Arrows
262,630,577
Factor Arrows
320,876,859
Factor Arrows
36,958,953
Factor Arrows
32,319,651
Factor Arrows
3773,217
Factor Arrows
3257,739
Factor Arrows
385,913
Factor Arrows
531,621

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, 53, 1621

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 3 x 53 x 1,621 = 125,261,154

This can also be written as 21 x 36 x 531 x 1,6211 = 125,261,154

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


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 125,261,154:


Ask a Question