Question

12,15,20 & 35 are three numbers
a)what is the least number of five digits which is divisible by the numbers​

Answer 1

Answer:

420

Step-by-step explanation:

12=2^2×3

15=3×5

20=2^2×5

35=7×5

for least 3-digit no.'n' divisible by all four no. given

n=2^2×3×5×7. {highest powers of each prime factor is taken}

=4×3×5×7

=420 is correct answer✓✓