Question

Find the number of four-digit numbers, which have distinct digits whose product is 540.​

Answer 1

Answer:

48

Step-by-step explanation:

540 = 2x270

       =2x2x5x3x3x3

the four digits  whose product  540  are 2,5,6.9  or 3,4,5,9

number of four-digit numbers using 2,5,6,9 is   4x3x2x1 =24

Number of four-digit numbers using 3,4,5,9 is   4x3x2x1 =24

total    48