Example:
12=2×2×3=22×3
18=2×3×3=2×32
24=2×2×2×3=23×3
20=2×2×5=22×5
36=2×2×3×3=22×32
18=2×3×3=2×32
24=2×2×2×3=23×3
20=2×2×5=22×5
36=2×2×3×3=22×32
CalcES is able to perform prime factorization of an integer.
Example:
SHIFT °'" (FACT)Enter a number, then press SHIFT °’” (FACT)

Enter a number, then tap the result to show “Result formats dialog”

Enter a number, then tap MORE button to show Expression Details screen

The Expression Details screen includes Prime factorization result
