If a number is divisible by both 5 and 12, it is also divisible by their least common multiple (LCM). To find the LCM, we first consider the prime factorization of both numbers.
The number 5 is a prime number, so its factorization is simply 5 itself. The number 12 can be factored into primes as follows:
- 12 = 2 × 2 × 3 = 22 × 3
To find the LCM, we take the highest power of each prime that appears in the factorizations:
- From 5: 51
- From 12: 22 and 31
This gives us:
- LCM = 22 × 31 × 51 = 4 × 3 × 5 = 60
Therefore, any number that is divisible by both 5 and 12 will also be divisible by 60. In conclusion, the number that a number divisible by both 5 and 12 will always be divisible by is 60.