How to use
- 1
Enter numbers, separated by commas.
- 2
Read each factorization and divisor list.
- 3
With two or more, see the GCF and LCM table.
When to use it
Homework
GCF of 84 and 120 with a table.
Fractions
LCM of denominators.
Is it prime?
Check big numbers.
Good to know
- GCF uses shared primes at their smallest powers.
- LCM uses every prime at its largest power.
- GCF 1 means coprime.
FAQ
How big?
Up to 10¹⁴.
Steps?
A table compares prime powers.
Is 1 prime?
No.