Answer :
5^4 x 7^4
5x5x5x5= 625
7x7x7x7=2,401
625x2,401= 1,500,625
answer= 1,500,625
5x5x5x5= 625
7x7x7x7=2,401
625x2,401= 1,500,625
answer= 1,500,625
Answer:
1500625
Work:
5^4 = 625
7^4 = 2401
Multiply them and it equals 1500625